Method for the production of golf ball

Details Method for the production of golf ball Method for the production of golf ball

2005-07-26

2010-11-30

Lee, Edmund H. (Department: 1791)

Plastic and nonmetallic article shaping or treating: processes

Mechanical shaping or molding to form or reform shaped article

To produce composite, plural part or multilayered article

C264S275000, C264S279100, C264S320000

Reexamination Certificate

active

07842216

ABSTRACT:
A core having a center, and a mantle layer comprising a thermoplastic resin composition is provided. Next, a reinforcing layer including a thermosetting resin composition is formed on the surface of this core to obtain a spherical body40. Next, this spherical body40is covered by two pieces of half shell46. Next, the spherical body40and the half shells46are placed into a mold32. Next, the mold32is clamped at a velocity of 0.01 mm/sec or greater and 1.0 mm/sec or less. The thermoplastic resin composition of the half shell46is heated while being compressed in the spherical cavity to result in flow. This thermoplastic resin composition is hardened to give a cover having a thickness of 0.1 mm or greater and less than 0.7 mm. The difference (T−Fc) between the molding temperature T and the incipient fluidization temperature Fc of the thermoplastic resin composition of the cover is 0° C. or greater and 30° C. or less.

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